Maxim Alternatives for the National Semiconductor LM4912
National Semiconductor LM4912
Benefits of the MAX9722 over the LM4912:
Differential inputs instead of the single-ended inputs of the LM4912 improves noise performance.
Outputs a ground referenced signal instead of a DC biased signal, eliminating the DC blocking capacitors required by the LM4912.
Outputs up to 130mW into a 32 ohm load instead of the 25mW output of the LM4912.
Lower THD+N (0.009% vs. 0.045% for the LM4912).
Higher Power Supply Rejection Ratio (80dB vs. 65dB for the LM4912) allows the amplifier to be operated without a dedicated LDO without sacraficing performance.
Features common-mode sense to eliminate ground loop noise that the LM4912 is vulnerable to.
Benefits of the LM4912 over the MAX9722:
The LM4912 has lower supply current (2mA vs. 5.5mA).
The LM4912 has fewer pins (10 vs. 16).
The LM4912 has a mute pin.
Maxim Alternative(s)
Description
Data Sheet
Order
MAX9722
5V, Differential Input, DirectDrive, 130mW Stereo Headphone Amplifiers with Shutdown
